Difference between websql and sqllite in aspect of mobile and web browser

please let me know, if both are same or not.

is websql and sqllite, both are available in Phone gap?

the Javascript Code which is used for web sql in web browser will be same for the mobile app or any other code do we need??

what is the advantage of web sql over sqlLite?

how about memory which is used in mobile for the case of websql?